/**
 * Copyright (C) 2013 Oleg Anastassov <oleg.anastassov@gmail.com>
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package kz.kstu.loc.desktop.chooser.filter;

import javax.swing.filechooser.FileFilter;
import java.io.File;
import java.util.Arrays;
import java.util.List;

/**
 * Date: 02.01.2013
 * Time: 10:53
 *
 * @author Oleg Anastassov
 */
public class ExcelFileFilter extends FileFilter {

    private static final List<String> ACCEPTED_EXT = Arrays.asList(
            ".xls"
    );

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean accept(File f) {
        return f.isDirectory() || isExtensionOk(f.getName());
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String getDescription() {
        return "Файлы Excel (*.xls)";
    }

    private boolean isExtensionOk(String fileName) {
        for (String ext : ACCEPTED_EXT) {
            if (fileName.toLowerCase().endsWith(ext)) {
                return true;
            }
        }
        return false;
    }

}
